DILLON, Mont. — Molten granite formed the Pioneer Mountain Range in southwest Montana about 72-million years ago. As the granite cooled, water carried quartz and other minerals through the rocks and ...
Diamond Hill Mine is open to the public, and anyone can dig here. With a small entry fee, you can search the ground for quartz crystals, amethyst, and even diamonds yourself. This video shows what a ...
CRYSTAL PARK, Mont. — Molten granite formed the Pioneer Mountain Range in southwest Montana about 72-million years ago. As the granite cooled, water carried quartz and other minerals through the rocks ...